Rotary engine.



S. HUFSCHMID ROTARY ENGINE.

APPLICATION FILED AUG-3. 1917.

Patented Feb 5, 1918.

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SAMUEL HUFSCHIVIID, OF PATERSON, NEW JERSEY.

ROTARY ENGINE.

Application filed- August 3, 1917.

To all whom it may concern: I

Be it known that I, SAMUEL HUrscHMID, a citizen of the United States,residing at Paterson, in the county of Passaic, State of N ew Jersey,have invented certain new anduseful Improvements in Rotary Engines; andI do declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention is an. improvement in enginesand has particular referenceto a 1'0- tary steam engine.

An object of the invention is to provide a simple and inexpensive enginein which the valves thereof are operated by an improved actuatingmechanism whereby to feed steam into the cylinders of the engine and, atintervals, check said feed thereto.

The inventive idea involved is capable of receiving a variety ofmechanical expres sions, one of which, for the purpose of illustratingthe invention, is shown in the accompanying drawing, wherein V Figure 1is a side elevation of an engine constructed in accordance with theinvention.

Fig. 2' is a transverse sectional view through one of the cylinders ofthe engine.

Fig. 3 is a longitudinal section through the engine.

In the drawing the numeral 5 indicates the base of the engine upon whicha pair of cylinders 6 are mounted, it being understood that any numberof cylinders desired may be employed. The shaft 7 is extended throughthe several cylinders and has mounted thereon a rotor 8 for eachcylinder provided upon its periphery with an abutment 9 against whichthe live steam impinges and drives the rotor around until the samepasses the exhaust pipe 10 in the cylinder, the abutments 9 of eachrotor being preferably arranged at diametrically opposite points to eachother with relation to the peripheries of said rotor.

Each cylinder 6 is preferably provided with a valve casing 11 on the topthereof into which extends a steam feed pipe 12, the lower end of saidpipe being mounted in the I upper end of an angular passage 13 formed inthe vertical slidable valve 14 whereby the steam entering the pipe 12will pass through said passage and into the chamber of the cylinder. Thevalve 14 is slidably mounted Specification of Letters Patent.v

Patented lFebo 5, 1913.

Serial No. 184,320.

upon the pipe12 and carries a stufling box or gland 15 which preventsleakage of the steam from the cylinder through the valve and into theupper portion of the casing 11. Each of the valves 14 is preferablyformed of a substantially rectangular block, the lower surface of whichis curved as indicated at 16 and normally engages the pe riphery of therotor 8, being yieldably held 111 such position by a coil spring 17surrounding the pipe 12 and interposed between the upper surface of thevalve and the upper end of the casing 11.

The mechanism for operating each valve preferably comprises a pair ofvertically disposed rods 18 having their lower ends see cured in thevalve and .slidably engaging the upper end of the casing 11, the upperends of said rods carrying a contact plate 19 for a purpose which willpresently appear. The valve casings 11 preferably have extendingtherefrom the diagonal bearings 20 supporting the horizontal shaft 21having a gear 22 on one end adapted to mesh with a similar gear 23carried by the upper end of the diagonally disposed shaft 24 mounted inbearing 25 and having its lower end provided with a beveled gear 26meshing with a similar gear 27 carried by one end of the shaft 7. Theshaft 21 carries a pair of arms 28, one for each cylinder, each of whichis provided upon its free end with a roller 29 adapted to intermittentlycontact the adjacent end of a rocking element 30 pivoted in a bracket 31carried by the top of the valve casing. Each of the rocking elements 30is provided with a pair of cams 32 and when the shaft 21 is driven inone direction one of the earns 32 will engage and raise the plate 19 andthus lift the valve 14 while the other cam 32 will be similarly actuatedwhen the shaft is driven in the opposite direction.

It will be seen from the foregoing description that when the parts arein the position shown in. Fig. 2, the valve 14 will have just beenreturned to its normal position and steam entering the pipe 12 will passthrough the passage 13 and against the abutment 9 and thus drive therotor. After the abutment has passed the exhaust pipe 10 before the samecan engage the valve 14 the arm 28 will strike the rocking element 30and raise the plate 19 so as to lift the valve 14 out of the path ofmovement of the abutment 9 and at the same time check the flow of Copieso1 this patent may be obtained for steam through the passage 13 untilsaid abutment has passed the valve and reached the position shown inFig. 2.

What is claimed is V V In a rotary steam engine, the combination of aplurality of cylinders, reciprocating I valves for feeding the steamthereto, rods extending from each-0f said valves, a plate carried by thefree ends of the rod of each valve, a rocking element having camsurfaces adapted to engage said plate, a shaft supported by saidcylinders, radially disposed arms carried by said shaft each of which isadapted to contact the adjacent rocking element whereby to reciprocatethe adjacent plate and actuate the valve to which it is connected, andmeans for driving said shaft.

In testimony whereof, I afiix my signature in the presence of twowitnesses.

SAMUEL HUFSCHMID. Witnesses:

'WILLIAM E. BRENNAN, ELIZABETH BRENNAN.

five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

